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    Author(s): Richard T. ReynoldsRussell T. Graham; M. Hildegard Reiser
    Date: 1992
    Source: Gen. Tech. Rep. RM-GTR-217. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 90 p.
    Publication Series: General Technical Report (GTR)
    Station: Rocky Mountain Forest and Range Experiment Station
    PDF: View PDF  (9.1 MB)

    Description

    Present forest conditions ­ loss of a herbaceous and shrubby understory, reductions in the amount of older forests, and increased areas of dense tree regeneration ­ reflect the extent of human influence on these forests. These changes may also be affecting goshawk populations. Information on goshawk nesting habitat and foraging behavior, and the food and habitats of selected goshawk prey, was therefore synthesized to develop a set of management objectives, desired forest conditions, and management recommendations. Key objectives of the guidelines are to provide (1) nesting, post-fledging, and foraging areas for goshawks, and (2) habitat to support abundant populations of 14 primary goshawk prey. Thinning trees in the understory, creating small openings in the forest, and prescribed fires should help produce and maintain the desired forest conditions. Other habitat elements critical for maintaining both goshawk and prey populations include abundant snags and large downed logs, woody debris, interspersion of different tree sizes across the landscape, and the majority of a goshawk's home range in older-aged forests. These guidelines should also benefit forest health, soil productivity, and the habitats of other old-growth-dependent plants and animals.

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    Citation

    Reynolds, Richard T.; Graham, Russell T.; Reiser, M. Hildegard. 1992. Management recommendations for the northern goshawk in the southwestern United States. Gen. Tech. Rep. RM-GTR-217. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 90 p.

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    Keywords

    northern goshawk, Accipiter gentilis, nesting habitat, prey populations, management recommendations

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